Question

Factorise the following
a4-7a2+1

Answer 1

Step-by-step explanation:

a^4-7a^2+1

= (a^2)^2+2(a^2)(1)+(1)^2

= (a^2+1)^2

formula===a^2+2ab+b^2

Answer 2

Answer: a^4-7a^2+1

= (a^2)^2+2(a^2)(1)+(1)^2

= (a^2+1)^2

it was simple and also thanks for the Question

:D